1/* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18/* 19------------------------------------------------------------------------------ 20 21 PacketVideo Corp. 22 MP3 Decoder Library 23 24 Filename: pv_mp3_huffman.h 25 26 Date: 09/21/2007 27 28------------------------------------------------------------------------------ 29 REVISION HISTORY 30 31 Description: 32------------------------------------------------------------------------------ 33 INCLUDE DESCRIPTION 34 35 36------------------------------------------------------------------------------ 37 REFERENCES 38 39 [1] ISO MPEG Audio Subgroup Software Simulation Group (1996) 40 ISO 13818-3 MPEG-2 Audio Decoder - Lower Sampling Frequency Extension 41 42------------------------------------------------------------------------------ 43*/ 44/*---------------------------------------------------------------------------- 45; CONTINUE ONLY IF NOT ALREADY DEFINED 46----------------------------------------------------------------------------*/ 47 48#ifndef PV_MP3_HUFFMAN_H 49#define PV_MP3_HUFFMAN_H 50 51 52/*---------------------------------------------------------------------------- 53; INCLUDES 54----------------------------------------------------------------------------*/ 55 56#include "pvmp3_audio_type_defs.h" 57#include "s_mp3bits.h" 58#include "s_tmp3dec_file.h" 59 60/*---------------------------------------------------------------------------- 61; MACROS 62; Define module specific macros here 63----------------------------------------------------------------------------*/ 64 65/*---------------------------------------------------------------------------- 66; EXTERNAL VARIABLES REFERENCES 67----------------------------------------------------------------------------*/ 68 69/*---------------------------------------------------------------------------- 70; DEFINES AND SIMPLE TYPEDEF'S 71----------------------------------------------------------------------------*/ 72 73 74/*---------------------------------------------------------------------------- 75; GLOBAL FUNCTION DEFINITIONS 76; Function Prototype declaration 77----------------------------------------------------------------------------*/ 78 79#ifdef __cplusplus 80extern "C" 81{ 82#endif 83 84 int32 pvmp3_huffman_parsing(int32 is[SUBBANDS_NUMBER*FILTERBANK_BANDS], 85 granuleInfo *grInfo, 86 tmp3dec_file *pVars, 87 int32 part2_start, 88 mp3Header *info); 89 90 91 void pvmp3_huffman_quad_decoding(struct huffcodetab *h, 92 int32 *is, 93 tmp3Bits *pMainData); 94 95 void pvmp3_huffman_pair_decoding(struct huffcodetab *h, 96 int32 *is, 97 tmp3Bits *pMainData); 98 99 100 void pvmp3_huffman_pair_decoding_linbits(struct huffcodetab *h, 101 int32 *is, 102 tmp3Bits *pMainData); 103 104#ifdef __cplusplus 105} 106#endif 107 108/*---------------------------------------------------------------------------- 109; END 110----------------------------------------------------------------------------*/ 111 112#endif 113 114 115 116